Smart-AVI HDN-4Plus-S KVM switch Black

4-Port HDMI KVM Switch with 4K Ultra HD and USB 2.0 Sharing - Supports Mac, PC, Linux and Sun Mac OS, Sun OS, Unix - Supports resolutions up to 4K Ultra HD (3820x2160 @30Hz), including 1080p (@60Hz) full HD - Uses HDMI 1.4 ports - Zero pixel loss with TMDS signal correction - Supports all USB 2.0 devices, including keyboard and mouse - Control Sun, Mac or PC workstations from one KVM console - Compatible with all major software including Windows, Linux, Mac OS, Sun OS, and Unix - Rack mountable in a standard 19 inch rack - Flash upgradeable firmware - Front panel keys for selecting users and channels manually - Supports LPCM 7.1, Dolby True HD, Dolby Digital Plus and DTS-HD Master Audio - RS-232 control for remote control - Optional TCP/IP control - Hot-key commands for quick channel selection. - Independent (asynchronous) switching of KVM and peripheral USB ports. Users can scan a document and save in another computer - Complete keyboard emulation for error free booting